Loss of offsite power transients in the updated PIUS 600 advanced reactor design

Conference · Mon Aug 01 00:00:00 EDT 1994

OSTI ID:10171540

Boyack, B E; Steiner, J L; Harmony, S C; Stumpf, H J; Lime, J F

The PIUS advanced reactor is a 640-MWe pressurized water reactor concept developed by Asea Brown Boveri. A unique feature of PIUS is the absence of mechanical control and shutdown rods. Reactivity is controlled by coolant boron concentration and the temperature of the moderator coolant. Los Alamos is supporting the US Nuclear Regulatory Commission`s preapplication review of the PIUS reactor. Baseline calculations of the PIUS design were performed for a loss of offsite power initiator using TRAC-PF1/MOD2. Additional sensitivity studies examined flow blockage and boron dilution events to explore the robustness of the PIUS concept for low-probability combination events following a loss of offsite power.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: Nuclear Regulatory Commission, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10171540
• Report Number(s): LA-UR-94-2526; CONF-941142-24; ON: DE94016161; TRN: 94:018788
• Resource Relation: Conference: American Society of Mechanical Engineers` winter annual meeting,Chicago, IL (United States),6-11 Nov 1994; Other Information: PBD: [1994]
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
PWR TYPE REACTORS
BLACKOUTS
TRANSIENTS
REACTIVITY
SENSITIVITY ANALYSIS
COOLANTS
BORON
WATER TREATMENT
REACTOR SAFETY
HYDRAULICS
HEAT TRANSFER
220900
210200
POWER REACTORS
NONBREEDING
LIGHT-WATER MODERATED
NONBOILING WATER COOLED